Shutterstock Close Authorship Editor’s note: This story is part of a nine-month investigation of drinking water contamination across the U.S. The series is supported by funding from the Park Foundation and Water Foundation. Read the launch story, "Thirsting for Solutions," here. Lisa Finley-DeVille started drinking bottled water around the same time her friend’s horses began to get sick and die. A half decade ago on the Fort Berthold Reservation in western North Dakota, Deville drove up to see her friend in the New Town area. The horses looked dehydrated and brittle, just skin and bones. They’re eating, but it’s like they’re not eating, her friend told her.